/Engine/Source/Editor/AnimGraph/Public/IAnimBlueprintCompilationContext.h
Prunes any nodes that aren't reachable via a pose link.
void PruneIsolatedAnimationNodes ( const [TArray](API\Runtime\Core\Containers\TArray)< [UAnimGraphNode_Base](API\Editor\AnimGraph\UAnimGraphNode_Base) * > & RootSet, [TArray](API\Runtime\Core\Containers\TArray)< [UAnimGraphNode_Base](API\Editor\AnimGraph\UAnimGraphNode_Base) * > & GraphNodes )